BY THOMAS G. SLOANE. 449 



Table of the 'princi'pal Genera of the tribe Carenides. 



L Palpi filiform. Anterior tibice with outer a})ical 

 angle projecting strongly forward, and with 

 two strong external teeth ( trichntate ), the 

 tooth next the apical projection as near as, 

 or nearer to the apex than where the inner 

 apical spine rises Scara%)h%tes. 



II. Palpi with last joint triangular or securiform. 

 Anterior tibise with outer apical angle pro- 

 jecting strongly forward, the external edge 

 either dentate or not ; if dentate, the tooth 

 next the apical projection placed further from 

 the apex than where the inner apical spine 

 rises. 

 A. Anterior tibise with external edge dentate. 



a. Lateral border of elytra either strongly re- 



flexed or thickened to form an upturned 

 projection at each shoulder. 



b. Lower edge of orbit prominent or projecting 



forward in front below eye. (Form broad 

 and heavy ; colour entirely black. The 

 gense divided from the submentum and 

 defined behind by a deep, oblique sulcus. 

 The suborbital channel to receive antennae 

 single. Anterior tibise bideiitate) EuryscapJius. 



c. Lower edge of orbit not prominent or pro- 



jecting forward. 



d. Elytra costate on each side near lateral 



margin. Anterior tiV)ise trideatate Philoscaphus. 



e. Anterior tibise tridentate, inferior ridge 



short, oblique, not extending forward 

 past second large external tooth. Elytra 

 foveate, or with a single row of strong 

 punctures down middle of each, or ( L. 

 cyaneuni, Fabr.) quadiipunctate Laccopterum 



